Home / 109,156,726.70-163,735,090.05-80,458,912.70

Finding the Fourth Proportional to 109,156,726.70, 163,735,090.05 and 80,458,912.70

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Solution

The fourth proportional to 109,156,726.70, 163,735,090.05 and 80,458,912.70 is: 120,688,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,156,726.70 : 163,735,090.05 = 80,458,912.70 : x
  2. Step 2: Convert to fraction form
    109,156,726.70/163,735,090.05 = 80,458,912.70/x
  3. Step 3: Cross multiply
    109,156,726.70x = 163,735,090.05 × 80,458,912.70
  4. Step 4: Simplify right side
    109,156,726.70x = 13,173,947,316,259,590
  5. Step 5: Solve for x
    x = 13,173,947,316,259,590/109,156,726.70
  6. Step 6: Final answer
    x = 120,688,369.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.